/**
 * Copyright 2017 VMware, Inc.
 * <p>
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * <p>
 * https://www.apache.org/licenses/LICENSE-2.0
 * <p>
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package io.micrometer.core.instrument.step;

import io.micrometer.core.instrument.Clock;

import java.util.concurrent.atomic.LongAdder;
import java.util.function.Supplier;

public class StepLong extends StepValue<Long> {
    private final LongAdder current = new LongAdder();

    public StepLong(Clock clock, long stepMillis) {
        super(clock, stepMillis);
    }

    @Override
    protected Supplier<Long> valueSupplier() {
        return current::sumThenReset;
    }

    @Override
    protected Long noValue() {
        return 0L;
    }

    public LongAdder getCurrent() {
        return current;
    }
}
